Switch-throwing device.



PATENTED APR. 23,1907.

J. FISHER 66 J. F. EVARTS. SWITCH THROWING DEVICE.

APPLICATION FILED SBPT.17.1906.

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UNITE STATES PATENT OFFTOE.

JAMES FISHER, OF EAST LIVERPOOL, OHIO, AND JOHN F. EVARTS, OF CHESTER, WEST VIRGINIA.

SWlTCH-THROWING DEVICE.

Specification of Letters Patent.

Patented April 23, 1907.

Application filed September 17,1906. Serial No. 334,847-

T at whom it may concern:

Be it known that we, JAMES Fisrinn, a subject of the King of Great Britain, residing at East Liverpool, county of Columbiana, Ohio, and JOHN F. EVARTS, a citizen of the United States of America, residing at Chester, in the county of Hancock, and State of WVest Virginia, have invented certain new and useful Improvements in Switch-Throwing Devices, of Which the following is a specification, reference being had therein to the accompanying drawing.

This invention relates to switch-throwing devices, adapted for street railways, and its object is to provide simple but effective means whereby the pivoted switch-points of a track may be operated from a car platform by the motorman.

The construction of the improvement will be fully described hereinafter in connection with the accompanying drawing which forms a part of this specification and its novel features will be defined in the appended claims.

In the drawing, Figure 1 is a side elevation, partly in vertical section, of my improved mechanism shown in connection with a car platform, and railway track, Fig. 2 is a top plan of the switch-operating device, with its protecting casing in horizontal section, Fig. 3 is a transverse vertical section on an enlarged scale, Fig. 4 is a side elevation illustrating the tripping device carried by the car, and the tappet wheel with which it contacts, and Fig. 5 is a detail of the spring-pressed treadle on the car platform.

The reference numeral 1 designates a car platform below which is secured a depending bracket 2 having a shoe 3 pivotally secured thereto. This shoe 3 is connected by a link 4 to the lower end of a vertically disposed rod 5 extending through the platform 1 having a treadle 6 at its upper end and encircled by a coil spring 7 above the platform.

A suitable casing 8 is arranged at one side of a railway track adjacent to a switch and within said casing at one 'end thereof is mounted upon a suitable horizontal axial support, a tappet wheel 10 provided with equidistant radially-projecting arms 11 adapted to be struck by the tripping shoe 3. At the other end of the casing 8 is mounted a horizontally-disposed wheel 12 on a stud journal 13. A crank pin 14; projects from the upper face of this wheel, and to said pin is pivotally connected one end of a rod 15, the opposite end of which is pivotally secured to one of the arms of the wheel 10. To the crank pin 14 is also pivotally secured one end of a rod 16 which is connected. by a pin 18 to the pivoted snitch points 19.

The casing S is slotted on its upper side to permit the arms 11 of the tappet wheel to proj ect into the path of travel of the shoe 3, and the inner side of said casing is also formed with a slot 20 through which the rod 16 extends.

The operation of the mechanism constructed as thus described will be readily understood. The shoe 3 is normally held above the projecting tappet arms 11 by the spring 7, but when it is desired to throw the switch the motorman depresses the treadle, to turn the tripping shoe to the position shown by dotted lines in Fig. 4: in which position the shoe will strike the projecting arm 11 and impart a partial revolution to the wheel 12 through the intcrii'iediacy of the rod 15. The movement of the wheel 12 will throw the switch point as is obvious from the drawing, through the rod 16. The spring 7 retracts the shoe to its elevated position as soon as pressure is removed from the treadle.

The improvement a'll'ords a simple means for effecting the movement of the switch from the car, thus avoiding the necessity of the services to a s\\"itch-tender.

lVhat we claim and desire to secure by Letters Patent, is

1. The combination with a switch, of a casing arranged adjacent thereto, a tappet wheel provided with projecting arms, a disk mounted within the casing and provided with a crank-pin, a rod connecting said crank-pin with one of the arms of the tappet wheel, a rod connecting said crank-pin with the switch-point, a bracket depending from a car platform, a shoe pivotally secured to said bracket, a vertically disposed. treadle extending through an opening in the car platform, a coil-spring encircling said treadle, and a link connecting the treadle and said shoe.

2. The combination with a switch, of a casing arranged adjacent thereto, a tappet wheel provided with projecting arms, a disk mounted within the casing and provided with a crank pin, a rod connecting said crank pin With one of the arms of the tappet Wheel, In testimony whereof We aflix our signaa rod connecting said crank pin With the ture in the presence of two Witnesses: switch point and means carried upon a car adapted to strike the arms of the tappet JAMES R;

JOHN F. EVARlS. Wheel, comprlslng a bracket clependlng lrom a car platform, a shoe pivotally secured Witnesses: thereto, a treaclle on the platform, and a link W. C. JOHNSTON,

connecting said treadle and shoe. J. H. ALLISON. 

